The passage quoted by Andrew Nikitin is from the J Wiki. http://www.jsoftware.com/jwiki/System/Interpreter/Requests06
> i would like the interpreter to be able to update > subarrays of differing > shapes. J does not have non-rectangular arrays. It would be strange to have an exception for them in amend. > i would like to see J more capable of dealing > with lists This is a major extension and a major piece of design and implementation. It can not be added just willy-nilly. ----- Original Message ----- From: greg heil <[EMAIL PROTECTED]> Date: Wednesday, July 19, 2006 8:33 am Subject: Re: [Jprogramming] } > Andrew wrote: > > >The interpreter is working as specified. The result is not > "intuitive" because in this case atoms of the index array do not > select subarrays that are the same shape. -- RogerHui 2006-07-18 > 23:06:08 > > > Where exactly this is specified? Dictionary page for } does not > mention shape of subarrays. > > > > >Could somebody please explain me where asterisk in top left > corner is coming from? > '*' ((<1;2 3),<0;7) } 2 9$'-' > *------*- > --**----- > > Roger wrote that? Private communication? But then most of the thread > responses i get from Andrew are strangely routed in my gMail client: > they always end up in a new thread separating each time from the > parent threads, so i probably just missed something. > > i would like the interpreter to be able to update subarrays of > differing shapes, eg in graphic applications etc. i would like to see > J more capable of dealing with lists - it is a major advantage > that K > has over J. List processing is a significant paradigm for regularizing > interactions with data and it should be subsumed within J. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
